<template>
  <div>
    <!--面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 搜索与添加区域 -->
      <el-row  :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" 
          v-model="queryInfo.query"
          clearable
          @clear="getGoodsList">
            <el-button slot="append" icon="el-icon-search"
            @click="getGoodsList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary"
          @click="goAddPage">添加商品</el-button>
        </el-col>  
      </el-row>
      <!-- table 表格区域 -->
      <el-table
        :data="goodsList"
        border
        stripe>
        <el-table-column type="index" label="#">
        </el-table-column>
        <el-table-column
          prop="goods_name"
          label="商品名称">
        </el-table-column>
        <el-table-column
          prop="goods_price"
          label="商品价格（元）"
          width="95px">
        </el-table-column>
        <el-table-column
          prop="goods_weight"
          label="商品重量"
          width="70px">
        </el-table-column>
        <el-table-column
          prop="add_time"
          label="创始时间"
          width="140px">
          <template slot-scope="scope">
            {{scope.row.add_time | dateformat}}
          </template>
        </el-table-column>
        <el-table-column
          label="操作"
          width="130px">
          <template slot-scope="scope">
            <el-button
              size="mini"
              @click="handleEdit(scope.$index, scope.row)"
              type="primary"
              icon="el-icon-edit"></el-button>
            <el-button
              size="mini"
              type="danger"
              icon="el-icon-delete"
              @click="removeById(scope.row.goods_id)"></el-button>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[10, 20, 50, 100, 200, 300, 400]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total" background>
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 获取商品列表的参数对象
      queryInfo: {
        // 查询参数
        query:'',
        // 当前的页数
        pagenum:1,
        // 当前每页显示多少条数据
        pagesize:10
      },
      // 商品列表数据
      goodsList: [],
      // 商品列表数据的总数
      total: 0,


    }
  },
  created() {
    this.getGoodsList()
  },
  methods: {
    // 获取商品列表
    async getGoodsList() {
      const {data: res} = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if(res.meta.status !== 200) {
        return this.$message.error('获取商品列表数据失败！')
      }
      console.log(res.data);
      res.data.goods.forEach(item => {
        // item.addtime = 
      })
      this.goodsList = res.data.goods
      this.total = res.data.total
    },
    // 每页显示的件数改变
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getGoodsList()
    },
    // 页数改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getGoodsList()
    },
    // 删除商品
    removeById(goods_id) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).then(async () => {
          const {data: res} = await this.$http.delete('goods/' + goods_id)
          if(res.meta.status !== 200) {
            return this.$message.error('删除商品失败！')
          }
          this.$message({
            type: 'success',
            message: '删除成功!'
          });
          this.getGoodsList()
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          });          
        });
    },
    // 前往添加商品页面
    goAddPage() {
      // 跳转页面
      this.$router.push('/goods/add')
    }
  }
}
</script>

<style lang="less" scoped>
.el-input {
  margin-bottom: 10px;
}
</style>